Home / 255,965,469.87-353,229,837.21-138,488,222.48

Finding the Fourth Proportional to 255,965,469.87, 353,229,837.21 and 138,488,222.48

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Solution

The fourth proportional to 255,965,469.87, 353,229,837.21 and 138,488,222.48 is: 191,112,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,965,469.87 : 353,229,837.21 = 138,488,222.48 : x
  2. Step 2: Convert to fraction form
    255,965,469.87/353,229,837.21 = 138,488,222.48/x
  3. Step 3: Cross multiply
    255,965,469.87x = 353,229,837.21 × 138,488,222.48
  4. Step 4: Simplify right side
    255,965,469.87x = 48,918,172,282,995,728
  5. Step 5: Solve for x
    x = 48,918,172,282,995,728/255,965,469.87
  6. Step 6: Final answer
    x = 191,112,388.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.